Sound /s/ spelled 'sc'

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Across
  1. 4. cutting tool
  2. 5. rising; climbing up
  3. 6. punishment; self-control
  4. 7. a person skilled in science
  5. 8. knowledge covering and testing general truths
Down
  1. 1. to cause immense interest
  2. 2. moon-shaped
  3. 3. going down
  4. 4. smell
  5. 7. a view or landscape